Finding the Fourth Proportional to 292,479,654.53, 403,386,576.19 and 257,121,859.34
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Solution
The fourth proportional to 292,479,654.53, 403,386,576.19 and 257,121,859.34 is: 354,621,269.88
Step by Step Solution
- Step 1: Write the proportion equation
292,479,654.53 : 403,386,576.19 = 257,121,859.34 : x - Step 2: Convert to fraction form
292,479,654.53/403,386,576.19 = 257,121,859.34/x - Step 3: Cross multiply
292,479,654.53x = 403,386,576.19 × 257,121,859.34 - Step 4: Simplify right side
292,479,654.53x = 103,719,506,503,135,040 - Step 5: Solve for x
x = 103,719,506,503,135,040/292,479,654.53 - Step 6: Final answer
x = 354,621,269.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.